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Pathogen-specific changes in composition and quality traits of milk from goats affected by subclinical intramammary infections

Published online by Cambridge University Press:  26 May 2021

Andreia B. Bezerra
Affiliation:
Department of Animal Sciences, College for Agricultural Sciences, Federal University of Paraiba, Areia-PB, 58397-000, Brazil
Candice M. C. G. de Leon
Affiliation:
Department of Animal Sciences, College for Agricultural Sciences, Federal University of Paraiba, Areia-PB, 58397-000, Brazil
Patrícia E. N. Givisiez
Affiliation:
Department of Animal Sciences, College for Agricultural Sciences, Federal University of Paraiba, Areia-PB, 58397-000, Brazil
Núbia M. V. Silva
Affiliation:
Department of Animal Sciences, College for Agricultural Sciences, Federal University of Paraiba, Areia-PB, 58397-000, Brazil
Lauro Santos Filho
Affiliation:
Department of Pharmaceutical Sciences, College of Health Sciences, Federal University of Paraiba, João Pessoa-PB, 58051-900, Brazil
Walter Esfraim Pereira
Affiliation:
Department of Fundamental and Social Sciences, College for Agricultural Sciences, Federal University of Paraiba, Areia-PB, 58397-000, Brazil
Edgard C. Pimenta Filho
Affiliation:
Department of Animal Sciences, College for Agricultural Sciences, Federal University of Paraiba, Areia-PB, 58397-000, Brazil
Paulo S. Azevedo
Affiliation:
Department of Animal Sciences, College for Agricultural Sciences, Federal University of Paraiba, Areia-PB, 58397-000, Brazil
Celso J. B. Oliveira*
Affiliation:
Department of Animal Sciences, College for Agricultural Sciences, Federal University of Paraiba, Areia-PB, 58397-000, Brazil Global One Health initiative (GOHi), The Ohio State University, ColumbusOH, 43210, USA
*
Author for correspondence: Celso J. B. Oliveira, Email: celso.oliveira@academico.ufpb.br

Abstract

We investigated the effects of pathogens associated with subclinical intramammary infections on yield, composition and quality indicators of goat milk. By means of a longitudinal study, individual half udder milk samples (n = 132) were collected at different lactation periods and assessed for milk yield and physicochemical composition, somatic cell count (SCC), total bacteria count (TBC) and microbiological culture. Staphylococci species accounted for the great majority of the isolates (96.1%). Intramammary infections significantly reduced fat and total solids in goat milk and increased both SCC and TBC. However, these indicators were significantly higher in udder halves affected by S. aureus compared with other staphylococci species.

Type
Research Article
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of Hannah Dairy Research Foundation

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